If the brake pedal or retarder control lever are actuated while the ARAC is being actuated, the machine can be
slowed down or stopped in the same way as for normal brake operations.
HANDLE KOMATSU TRACTION CONTROL SYSTEM (KTCS)
KTCS is a system to prevent slipping of the drive wheels caused by excessive torque and improve starting and
traveling ability on soft or slippery ground.
WARNING
• KTCS system is enabled when the “KTCS Setting” is turned ON.
• If the system has trouble and cannot be controlled securely, the machine monitor displays an action
level and the system may stop operation depending on the failure condition.
• The machine may not travel safely on an extremely slippery road or a steep slope even if the KTCS
operates.
• If a wheel is stuck in the ground and the machine cannot escape while the KTCS operates, pull out
the machine with a bulldozer, etc.
Explanation of components
(1) KTCS setting
(2) KTCS display
(3) Inter-axle differential lock pilot lamp
(4) Retarder control lever
(5) Accelerator pedal
(6) Brake pedal
(7) Inter-axle differential lock switch
(8) KTCS system caution lamp
OPERATION MACHINE OPERATIONS AND CONTROLS
3-199
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